Fits 1965-1990 Chevrolet 396-454 Big Block with Round Ports DODGE 6.7L The BD Torq/UnLoc is also

The BD Torq/UnLoc is also able to prevent the ECM from activating the lock-up clutch when such an action would drag the engine rpm out of the optimum torque range

Cap Part Number C109108C04-06

It features a double O-ring design for a tight seal

and rugged capability

Only fits 5 foot 5 inch bed models

Fits 1965-1990 Chevrolet 396-454 Big Block with Round Ports DODGE 6.7L The BD Torq/UnLoc is alsoMr. Gasket CopperSEAL Header Gaskets are a high quality copper gasket that performs extremely well and are reusable. We recommend this in all racing and high performance applications. They are for stock heads unless indicated, and work well in high heat and turbocharged applications.